Then we have to get into a discussion of what is good and evil.Lying is not evil. Harming, oppressing and killing others is evil. Lying doesnt fit into those categories unless its used to harm or oppress others.
By that definition many things I consider "evil" (I put that in quotes because I don't truly believe in good and evil) can in fact be "good." You can murder someone to protect others for example.Deception can in fact be Good (in that a lie can protect someone from harm).
a good person can murder someone to protect themselves or others. You can play this game with a lot of good and evil things. IMO, context and scale matter.It doent work that way. A morally good person doesnt engage in 'the odd murder' here or there, or just the one off light bit of genocide.
I would argue they performed an evil act. Such an act could make them no longer a morally good person, but not necessarily. Context, scale, and how they respond matters IMO.If they're doing those things, they are (by extension) no longer a morally good person, and likely never in fact was a morally good person, seeing as they did things a morally good person would never do.